Dräger Infinity M540 VG4.1.1 Spoofing and DoS via Network Message Handling

Dräger Infinity Acute Care System and Standalone Infinity M540 patient monitors running software versions VG4.1.1, VG4.0.3, and lower contain network message handling vulnerabilities that allow network-adjacent attackers to spoof or tamper with data and cause denial-of-service conditions. Attackers with access to an enabled Infinity network port or physical proximity to a wireless access point can modify device settings such as alarm states or alarm limits, and overwhelm the system with incoming data causing the device to reboot and lose network functionality.